Vendor import of llvm trunk r178860:

http://llvm.org/svn/llvm-project/llvm/trunk@178860

1 files changed, 185 insertions, 0 deletions

diff --git a/unittests/IR/IRBuilderTest.cpp b/unittests/IR/IRBuilderTest.cpp
new file mode 100644
index 0000000..fecc4a4
--- /dev/null
+++ b/unittests/IR/IRBuilderTest.cpp
@@ -0,0 +1,185 @@
+//===- llvm/unittest/IR/IRBuilderTest.cpp - IRBuilder tests ---------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/IR/BasicBlock.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/Function.h"
+#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/MDBuilder.h"
+#include "llvm/IR/Module.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+
+namespace {
+
+class IRBuilderTest : public testing::Test {
+protected:
+  virtual void SetUp() {
+    M.reset(new Module("MyModule", getGlobalContext()));
+    FunctionType *FTy = FunctionType::get(Type::getVoidTy(getGlobalContext()),
+                                          /*isVarArg=*/false);
+    F = Function::Create(FTy, Function::ExternalLinkage, "", M.get());
+    BB = BasicBlock::Create(getGlobalContext(), "", F);
+    GV = new GlobalVariable(*M, Type::getFloatTy(getGlobalContext()), true,
+                            GlobalValue::ExternalLinkage, 0);
+  }
+
+  virtual void TearDown() {
+    BB = 0;
+    M.reset();
+  }
+
+  OwningPtr<Module> M;
+  Function *F;
+  BasicBlock *BB;
+  GlobalVariable *GV;
+};
+
+TEST_F(IRBuilderTest, Lifetime) {
+  IRBuilder<> Builder(BB);
+  AllocaInst *Var1 = Builder.CreateAlloca(Builder.getInt8Ty());
+  AllocaInst *Var2 = Builder.CreateAlloca(Builder.getInt32Ty());
+  AllocaInst *Var3 = Builder.CreateAlloca(Builder.getInt8Ty(),
+                                          Builder.getInt32(123));
+
+  CallInst *Start1 = Builder.CreateLifetimeStart(Var1);
+  CallInst *Start2 = Builder.CreateLifetimeStart(Var2);
+  CallInst *Start3 = Builder.CreateLifetimeStart(Var3, Builder.getInt64(100));
+
+  EXPECT_EQ(Start1->getArgOperand(0), Builder.getInt64(-1));
+  EXPECT_EQ(Start2->getArgOperand(0), Builder.getInt64(-1));
+  EXPECT_EQ(Start3->getArgOperand(0), Builder.getInt64(100));
+
+  EXPECT_EQ(Start1->getArgOperand(1), Var1);
+  EXPECT_NE(Start2->getArgOperand(1), Var2);
+  EXPECT_EQ(Start3->getArgOperand(1), Var3);
+
+  Value *End1 = Builder.CreateLifetimeEnd(Var1);
+  Builder.CreateLifetimeEnd(Var2);
+  Builder.CreateLifetimeEnd(Var3);
+
+  IntrinsicInst *II_Start1 = dyn_cast<IntrinsicInst>(Start1);
+  IntrinsicInst *II_End1 = dyn_cast<IntrinsicInst>(End1);
+  ASSERT_TRUE(II_Start1 != NULL);
+  EXPECT_EQ(II_Start1->getIntrinsicID(), Intrinsic::lifetime_start);
+  ASSERT_TRUE(II_End1 != NULL);
+  EXPECT_EQ(II_End1->getIntrinsicID(), Intrinsic::lifetime_end);
+}
+
+TEST_F(IRBuilderTest, CreateCondBr) {
+  IRBuilder<> Builder(BB);
+  BasicBlock *TBB = BasicBlock::Create(getGlobalContext(), "", F);
+  BasicBlock *FBB = BasicBlock::Create(getGlobalContext(), "", F);
+
+  BranchInst *BI = Builder.CreateCondBr(Builder.getTrue(), TBB, FBB);
+  TerminatorInst *TI = BB->getTerminator();
+  EXPECT_EQ(BI, TI);
+  EXPECT_EQ(2u, TI->getNumSuccessors());
+  EXPECT_EQ(TBB, TI->getSuccessor(0));
+  EXPECT_EQ(FBB, TI->getSuccessor(1));
+
+  BI->eraseFromParent();
+  MDNode *Weights = MDBuilder(getGlobalContext()).createBranchWeights(42, 13);
+  BI = Builder.CreateCondBr(Builder.getTrue(), TBB, FBB, Weights);
+  TI = BB->getTerminator();
+  EXPECT_EQ(BI, TI);
+  EXPECT_EQ(2u, TI->getNumSuccessors());
+  EXPECT_EQ(TBB, TI->getSuccessor(0));
+  EXPECT_EQ(FBB, TI->getSuccessor(1));
+  EXPECT_EQ(Weights, TI->getMetadata(LLVMContext::MD_prof));
+}
+
+TEST_F(IRBuilderTest, LandingPadName) {
+  IRBuilder<> Builder(BB);
+  LandingPadInst *LP = Builder.CreateLandingPad(Builder.getInt32Ty(),
+                                                Builder.getInt32(0), 0, "LP");
+  EXPECT_EQ(LP->getName(), "LP");
+}
+
+TEST_F(IRBuilderTest, GetIntTy) {
+  IRBuilder<> Builder(BB);
+  IntegerType *Ty1 = Builder.getInt1Ty();
+  EXPECT_EQ(Ty1, IntegerType::get(getGlobalContext(), 1));
+
+  DataLayout* DL = new DataLayout(M.get());
+  IntegerType *IntPtrTy = Builder.getIntPtrTy(DL);
+  unsigned IntPtrBitSize =  DL->getPointerSizeInBits(0);
+  EXPECT_EQ(IntPtrTy, IntegerType::get(getGlobalContext(), IntPtrBitSize));
+  delete DL;
+}
+
+TEST_F(IRBuilderTest, FastMathFlags) {
+  IRBuilder<> Builder(BB);
+  Value *F;
+  Instruction *FDiv, *FAdd;
+
+  F = Builder.CreateLoad(GV);
+  F = Builder.CreateFAdd(F, F);
+
+  EXPECT_FALSE(Builder.getFastMathFlags().any());
+  ASSERT_TRUE(isa<Instruction>(F));
+  FAdd = cast<Instruction>(F);
+  EXPECT_FALSE(FAdd->hasNoNaNs());
+
+  FastMathFlags FMF;
+  Builder.SetFastMathFlags(FMF);
+
+  F = Builder.CreateFAdd(F, F);
+  EXPECT_FALSE(Builder.getFastMathFlags().any());
+
+  FMF.setUnsafeAlgebra();
+  Builder.SetFastMathFlags(FMF);
+
+  F = Builder.CreateFAdd(F, F);
+  EXPECT_TRUE(Builder.getFastMathFlags().any());
+  ASSERT_TRUE(isa<Instruction>(F));
+  FAdd = cast<Instruction>(F);
+  EXPECT_TRUE(FAdd->hasNoNaNs());
+
+  F = Builder.CreateFDiv(F, F);
+  EXPECT_TRUE(Builder.getFastMathFlags().any());
+  EXPECT_TRUE(Builder.getFastMathFlags().UnsafeAlgebra);
+  ASSERT_TRUE(isa<Instruction>(F));
+  FDiv = cast<Instruction>(F);
+  EXPECT_TRUE(FDiv->hasAllowReciprocal());
+
+  Builder.clearFastMathFlags();
+
+  F = Builder.CreateFDiv(F, F);
+  ASSERT_TRUE(isa<Instruction>(F));
+  FDiv = cast<Instruction>(F);
+  EXPECT_FALSE(FDiv->hasAllowReciprocal());
+
+  FMF.clear();
+  FMF.setAllowReciprocal();
+  Builder.SetFastMathFlags(FMF);
+
+  F = Builder.CreateFDiv(F, F);
+  EXPECT_TRUE(Builder.getFastMathFlags().any());
+  EXPECT_TRUE(Builder.getFastMathFlags().AllowReciprocal);
+  ASSERT_TRUE(isa<Instruction>(F));
+  FDiv = cast<Instruction>(F);
+  EXPECT_TRUE(FDiv->hasAllowReciprocal());
+
+  Builder.clearFastMathFlags();
+
+  F = Builder.CreateFDiv(F, F);
+  ASSERT_TRUE(isa<Instruction>(F));
+  FDiv = cast<Instruction>(F);
+  EXPECT_FALSE(FDiv->getFastMathFlags().any());
+  FDiv->copyFastMathFlags(FAdd);
+  EXPECT_TRUE(FDiv->hasNoNaNs());
+
+}
+
+}